Improvement in eecipeocatiig haeeow



"J. DENSMORE. Whel-Harrow.

NO. 66,684. 1 Patented July 16, 1867.

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1 i L y goiter! JAY DENSMORE, OF HOLLEY, NEW, YORK, ASSIGNOR TO L. A. DENSMORE AND JUS'IUS DAY, OF SAME PLACE.

Letters Patent No. 66,684, dated July l6, 1867.

IMPROVEMENT IN REGIPROGA IIN G HARROW.

Be-it known that I, JAY DENSMORE, 0F Holley, in the county of Orleans, and State of New York, have invented a new and useful Reciprocating Harrow; and Ido hereby declare that thefolloiving is a full, clear,

and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure 1 is a perspective view and Figure 2 a top view with the driver's seat removed.

I construct my barrow in any convenient form, in the centre of which I have the wrist-pin -n cast solid to the plate 1' which is firmly secured to the frame of the harrow, to which wrist-pin the draught-pole l) and the pole E of the carriage A A are attached in such a manner that the pole E of the carriage A A is free to turn ifli ny direction by means of the sleeves z and h and the joint 0, as shown in the drawings. The draught-pole Dis' free to turn upon the wrist-pin 1t horizontally, but is prevented from rising by the brace g. The whole is held down upon the wrist-pin n by the pin 1 or its equivalent. In the carriage A A I have the double crankaxle C C, or its equivalent, to each crank of which is attached one'end of the chains 0 c c c, or their equivalents,

the other ends of said chains being attached to the frame of the barrow, one on each side of the wrist-pin n at the points 2' 2. The driver's seat B is attached to the frarne of the carriageA A, as shown in fig. 1. 7

When the barrow is drawn over the ground the wheels of the carriage AA cause the cranks C G to revolve .which being connected to the barrow by the chains 0 c c a, cause the barrow to reciprocate, the guards s s 8 s keeping the chains from catching upon the heads of the barrow-teeth under them; The amount'of reciprocating motion can be regulated by moving the points of attachment of the chains 0 c c c to the barrow, either nearer or more distant-from the wrist-pin nto the eyes 3 3 3 3.

What I claim as my invention, and desire to secure by Letters Patent, is A reciprocating barrow operated by cranks, or their equivalents;- Also the carriage A A behind the reciprocating-harrow, as described. W Also the drivers seat B, in combination with the carriage A A, as described. if Also the wrist-pin n, the draught-pole D, the sleevesz' and h, the joint 0, or their equivalents, the brace g,- the chain s c c c c, or their equivalents, the guards es s s, all in combination with areciprocating harrow, as-and for the purposes set forth and described.

JAY DEN SMORE.

Witnesses:

O. A. EDDY, Jus'rns DAY. 

